Analysis

  • max time kernel
    142s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2022 04:54

General

  • Target

    d12f1a3ff9ae33b493e9631f998535aa7a7517b058ec0ea7205ec6388844fc97.exe

  • Size

    516KB

  • MD5

    22749761f0857949ba098b99470010c9

  • SHA1

    e01926acc8579bef20883fcbde8a6d7bf16c187b

  • SHA256

    d12f1a3ff9ae33b493e9631f998535aa7a7517b058ec0ea7205ec6388844fc97

  • SHA512

    8c82beae0f547478fa5863e2474858770850e4865a5041e754a14efe08f258753e299af832d057975c1dbdbf7c5c15d16d67b9aebeb0190f7e7e65fd32aff09a

  • SSDEEP

    12288:9s/DzxUKJXS6X+BeOi5+McJQjXgXxJX29yqtNYvHWFcVHGfV:qD1DyehI9Qjep28qEWFSUV

Malware Config

Signatures

  • Detect Neshta payload 7 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d12f1a3ff9ae33b493e9631f998535aa7a7517b058ec0ea7205ec6388844fc97.exe
    "C:\Users\Admin\AppData\Local\Temp\d12f1a3ff9ae33b493e9631f998535aa7a7517b058ec0ea7205ec6388844fc97.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4876
    • C:\Users\Admin\AppData\Local\Temp\d12f1a3ff9ae33b493e9631f998535aa7a7517b058ec0ea7205ec6388844fc97.exe
      C:\Users\Admin\AppData\Local\Temp\d12f1a3ff9ae33b493e9631f998535aa7a7517b058ec0ea7205ec6388844fc97.exe
      2⤵
      • Modifies system executable filetype association
      • Checks computer location settings
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies registry class
      PID:1336

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1336-135-0x0000000000000000-mapping.dmp

  • memory/1336-136-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1336-137-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1336-138-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1336-140-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1336-141-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1336-142-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4876-133-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/4876-139-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB